axify: Add options to download and install COPYING file

Currently the following licenses are supported:

- gpl2: GNU GPL v2
- gpl3: GNU GPL v3
- lgpl21: GNU LGPL v2.1
- lgpl3: GNU LGPL v3

diff --git a/scripts/axify b/scripts/axify
index 93adf396671bffea3568c3e3b1f9f5c75a9498e8..b9ea12f64ee9dbaa5cb8d6412e8d3bafde0599d8 100755 (executable)
--- a/scripts/axify
+++ b/scripts/axify
@@ -12,15 +12,58 @@
 NAME=`basename "$0"`
 
 Usage() {
-       echo "Usage: $NAME [<lib-dir>]"
+       echo "Usage: $NAME [-2|-3|-l <lic>] [<lib-dir>]"
+       echo
+       echo '  -2           Use the GNU GPLv2 for the COPYING file.'
+       echo '  -3           Use the GNU GPLv3 for the COPYING file.'
+       echo '  -l <lic>     Specify license to use for the COPYING file:'
+       echo '               <lic> can be "gpl2", "gpl3", "lgpl21", "lgpl3".'
+       echo '               By default an empty COPYING file is created.'
        echo
        echo "  <lib-dir>    Library directory. Default: current working directory."
        echo
        exit 2
 }
 
+Download() {
+       URL="$1"
+       FILE="$2"
+
+       echo "Downloading $URL to $FILE ..."
+
+       curl --version >/dev/null 2>&1
+       if [ $? -eq 0 ]; then
+               curl -#o "$FILE" "$URL" && return 0
+               echo "Failed to download $URL! [curl]"
+               return 1
+       fi
+
+       wget --version >/dev/null 2>&1
+       if [ $? -eq 0 ]; then
+               wget -qO "$FILE" --show-progress "$URL" && return 0
+               echo "Failed to download $URL! [wget]"
+               return 1
+       fi
+
+       echo "Can't download $URL, no download tool found!"
+       return 1
+}
+
+LIB_D="."
+LICENSE=""
+
 while true; do
        case "$1" in
+               "-2")
+                       LICENSE="gpl2"
+                       ;;
+               "-3")
+                       LICENSE="gpl3"
+                       ;;
+               "-l")
+                       LICENSE="$2"
+                       shift
+                       ;;
                "-"*)
                        Usage
                        ;;
@@ -33,7 +76,7 @@ done
 
 [ $# -gt 1 ] && Usage
 
-[ -n "$1" ] && LIB_D="$1" || LIB_D="."
+[ -n "$1" ] && LIB_D="$1"
 
 if [ -r "/usr/local/share/ax-make/Makefile.ax" ]; then
        MAKEFILE_AX="/usr/local/share/ax-make/Makefile.ax"
@@ -95,6 +138,32 @@ if [ ! -e AUTHORS ]; then
        fi
 fi
 
+if [ ! -e COPYING ]; then
+       LICENSE_URL=""
+       case "$LICENSE" in
+               "")
+                       ;;
+               "gpl2")
+                       LICENSE_URL="http://www.gnu.org/licenses/gpl-2.0.txt"
+                       ;;
+               "gpl3")
+                       LICENSE_URL="http://www.gnu.org/licenses/gpl-3.0.txt"
+                       ;;
+               "lgpl21")
+                       LICENSE_URL="https://www.gnu.org/licenses/lgpl-2.1.txt"
+                       ;;
+               "lgpl3")
+                       LICENSE_URL="https://www.gnu.org/licenses/lgpl-3.0.txt"
+                       ;;
+               *)
+                       echo "Can't setup unknown \"$LICENSE\" license!"
+                       ;;
+       esac
+       [ -n "$LICENSE_URL" ] && Download "$LICENSE_URL" COPYING
+else
+       [ -n "$LICENSE" ] && echo "COPYING file already exists, skipping."
+fi
+
 for f in AUTHORS COPYING README; do
        if [ ! -e "$f" ]; then
                echo "Creating empty \"$f\" file ..."